Home / 25,758.58-38,655.20-9,118.56

Finding the Fourth Proportional to 25,758.58, 38,655.20 and 9,118.56

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Solution

The fourth proportional to 25,758.58, 38,655.20 and 9,118.56 is: 13,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,758.58 : 38,655.20 = 9,118.56 : x
  2. Step 2: Convert to fraction form
    25,758.58/38,655.20 = 9,118.56/x
  3. Step 3: Cross multiply
    25,758.58x = 38,655.20 × 9,118.56
  4. Step 4: Simplify right side
    25,758.58x = 352,479,760.51
  5. Step 5: Solve for x
    x = 352,479,760.51/25,758.58
  6. Step 6: Final answer
    x = 13,683.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.